I think the answer to this would be :
Younger people also need to do warm-ups because their muscles can also get injured.
There is no person in the world where someone's muscles would not get injured if they do not stretch or do warm-ups. It is the way of life that the muscles can be more stiff if no loosened up and this sometimes results in injuries or sprains.
Yes you can it’s pretty easy
Her lunch includes alot of protein.
